The claws on the adult female blue crab are tipped with red. Males can be seven to eight inches (18 to 20 centimeters) across, while females are a bit smaller in size. Range A blue crab's typical lifespan is between three and four years.
A blue crab photographed in Myrtle Grove, Louisiana Weight: 1 to 2 pounds The blue crab is so named because of its sapphire-tinted claws. Its shell, or carapace, is actually a mottled brownish color, and mature females have red.
Blue Crab Information Sheet from the Chesapeake Bay Program. 1. Background Nevertheless, we know a considerable amount about the crustacean's life cycle pounds, which is below the long-term average, but it was a 25 percent increase The male crab's apron is shaped like an inverted 'T.' An adult female's .